Furnace.



J. R. FORTUNE.

FURNACE. 7 APPLICATION FILED APR.15,1908.

Patented Nov. 16, 1969 WITNESSES;

IN VEN TOR J. R. FORTUNE.

FURNACE.

APPLICATION FILED APR.15, 1908.

Patented Nov. 16,1909.

3 SHEETSSHBET 3.

IN VEN TOR JOHN R. sermons, on "burner-r, MICHIGAN.

FURNACE.

Specification of Letters Patent.

"Patented Nov. 18. 3.959%.

Application filed .gspril 15, 190%. Serial No. 427,138.

siding at Detroit, in the county of Jayne and State of Michigan, have invented cer tain new end'useful Improvements in Furnaces, of which the following is a specificstion,"reference being had therein. to the ac compiinying drawings. 4

This invention relates to improvements in furnaces and more particularly to a clinkerber or grinder and a grate bearer and mount ing therefor, for automatic furnaces.

An object of the invention is to provide a cheap and eficient knockdown construction having. its parts so arranged as to interlock when set up in position for use, and to provide a mounting for'the clinker-bur, so constructed that said her may be quickly and easily removed.

A further object is to increase the ellicieney of the clinker-bur by arranging its teeth in a spiral row r rows and to increase its'dnrebility by making the same in sections 'which may be removed and replaced and which increase its radiating surface by offording air spaces between the sections.

Itis also an object of the invention to provide means for restricting the opening between the clinker-bar and bearer, which means may be removed to permit the freer passage of clinkers and ash, and to provide certain other new and useful features in the construction, arrangement and combination of parts, all as hereinafter more fully de scribed, reference being had to the ziccoinpw nying drawings, in which- Figure l is a perspective View of a bearer with its clinker-bur in place thereon, enibodying the invention; Fig. Q'is a front elevation of u 'portion of u furnace front; Fig. 3, is a plan view of the bearer and clinker-bar; Fig. 4 is a longitudinal, vertical section on the axial line of the clinker-bar, through a furnace; Fig. 5 is u transverse Vertical section of the same on the line :r-a: of Figs. 3 and at: Fig. 6, is u similar View, on the line --g and. Fig. 7 is an enlarged perspective detail showing the forward clinkerber bearing and adjacent parts in section.

As sh wn in the .lewings 1-1 are parallel plates'forming th s of the grate bearer and these plates are spaced apart by a series of transverse bearing members or plates 2, the ends ofuwhich engage between vertical ribs 3 on the inner sides of the plates 2, and

bolts l passing through the bearer sides extend across adjacent to one side of each hearing member to tie the sides together and clamp the bearing members between. Each bearing member rests upon lugs 5 which fill the lower ends of the grooves between the ribs 3, and lugs o projecting from the face of eachbcuring nienibcr just beneath the adjacent tie bolt l, prevent the bearings from lifting in the grooves. When in position within the furnuce. the bearer rests at its rear end upon rolls 7 on a supporting plate 8 built into the bridge well of the furnuce,u1ul at its forward end is supported upon a bracket S) on the furnace front. The upper edge of each side of the bearer is beveled for the engagement of a series of stationary grate-burs 10 which alternate with similar niovublc grate-burs l1 and all of these bars extend upwardly and outwardly from the consists of u bur or shaft 1-; which is square in ci'oss scctiou extending the length of the bearer with its forward end projecting through un opening in the furnace front. and slipped upon this bur are the b-zu'ingthiiubles let each having a square uxiul ope; iug to lit the hair and :1 cvliudricul oul'cr surface to rest uud turn in the souls in said bearings 3. Strung on said shu'fl between suid thiuiblcs is :1 series of short sections or rings euch formed with :1 square axial opening to lit the shu'ft and provided on its outer surface with u tooth 16. These sections urc prcl'crubly sci relative to the shaft so that the teeth extend outward in :t spiral row, the row exteudingoncc around the shaft between the bearings. On the shaft forward of the front brewing; is a. sleeve 17 and. the foru and end of this sleeve engages bearing provided therefor in a detachable plate 18 secured over an opening in the furuucc front. lhc outwardly projecting end of the sleeve is squared for the engagement of a suitable lever for turningthe clinkerbar and a pin 19 extends through the end of the shaft and engages the end of the sleeve to hold the shaft from longitudinal movement relative to the sleeve and'its sections. The rearmost bearing is formed with upwardly filled by a filler or cap-plate 26. ,plate is formed at its lower edge to rest upon extending curved fingers 20 which nearly complete the circle of the be arin so that the thimble 14: is prevented -from lifting tint Vtfl': tically and a pin 21 extending through the end of the shaft prevents said thimble from slipping endwise from the bearing in one direction and a flange on the thimble engaging the end of the hearing prerents such endwise movement in the opposite direction. A suffieient opening, however, is left between the ends of the fingers 20 to permit of the lifting out of the shaft when the pin 21 is re moved and the thimble slipped longitudinally out of the bearing. Thus the clinkerbar may be quickly and easily lifted out for repair by emoving the plate 18 and disengaging the thimble ll from its hearing.

Upon the bridge-wall at the rear of the grate-bars and set at an inclination similar to said bars are the dead grate-bars 22 with their lower ends en aging the sides of the bearer iii a manner similar to that of the stationary grate-bars. To cover the rear end of the bearer between the dead grate-bars, a cap-plate 23 is provided. This plate is formed with downwardly extending curved ribs forming legs to engage the beam at each side andsupporting the plate in the desired position thereon.

'24; is a fire-door in the furnace front and extending inward and downward from said door to the front bearing 2 of the bearer is a hearth-plate ,This hearth-plate is formed in the usual manner to conform to the V-shape of the grate and to receive a tirelJllCk covering. The space between the lower edge of the hearth-plate and the bearing 2 is This capthe upper edge of the bearing-plate 2 and uponthe thimble and at each side of the thimble is provided with downwardly extending lugs 27 to engage the inner side of the bearing-plate. The upper edge of the.

filler-plate is provided with a flange 2S tot engage the inner side of the flange on the hearth- )late and said filler-plate, engaging at its inner side the adjacent stationary grate-bars and also arib on the end at the bearing-thimble, is prevented from slipping;- inward, the lugs 27 and flange 28 preventing the filler-plate from slipping; forward. The filler-plate is thus interlocked with the other parts, and securely held against acci- *dental displacement while at the same time filling in the space between the hearth-plate and the bearingto prevent the escape of ashes and chnkers. It also i'orms a cap to hold the thimble in 11's bearing and is made detachable to facilitate the removal of the thimhle and other parts. i

T he clinker-bar is preferably set in its bearings a little to one side oi the center line of the bearer so that there is a greater space between it and the sides of the bearer atone side than at the other. To partial" till this wider space at one side of the clinker-bar suitable filler-plates '29 are pro vided, one between each pair of bearings. These filling members are detaehahly supported in place by being provide l lugs 30 at their upper edges to piojeet over and. engage the top of the bearings 2. it intervals upon the outer face at the h" plates'are spacing-ribs til-to engage the side of the bearer and space the plate therefrom; These plates being simply hung by their lugs between the bearings, may he qnieltly and easily lifted out at any time shouid; it be desi -able,-en account of large quantities of clinker and ash from the coal, to provide a greater space between the clinker-bar ar the bearer. p

In each of th bearingplates lower edge is a hole 32, in which holes is 0 supported a steam-pipe having series of jet openings along its upper side to project jets of steam upward around the eiinltenhar to assist in the disintegration of the elinlters. This steam-pipe extends outward through the "furnace front and is connected. with any desired supply. As shown in l indob ted lines, other or additional steampipes 3i, may he supported in any suitahlemanner ateach side of the bearerfalong its outer lower edges to direct the jets of steam upward between the grate-bars.

By making the grate-bar or ring-sections 15 each formed with -on. e' or more teeth, should one of the teeth become broken the section maybe removed and a new section put in its plaeewithout the necessity for a whole new bar, and as these-:seetions are formed with adjacent inclinedfaees 15 as shown in Fig. 4 the radiating surface 'ofthe grate-bar-is materially increased and there fore cools much more readily, preventing warping and othertrouhles fr m over-heat ing. As shown, the sections 15 betweenthe forward bearing 2 of the bearer and the adjacent bearingare all made of the same diameter, but the sections between the'seeond bearing and the next are preferably at a lesser diameter and those between the third and the last bearing are of a still lesser diameter. The clinker-bar,taken as a whole, is thus given a tapering form, being of larger diameter at its forward end thanat its rear end. The space between the sides of the clinker-bar and the sidesiof the bearer thus increases toward the rear of the bearer, so that more of the ash and clinker some? 3 next adjacent bearing are, however, preferabl v all made of tll.S11"11 the meter sothat they will be interchangeable and butv three sizes will be required for the whole bar, thus cheapening the construction and making it much easier to specify the ring required, should one become broken.

Having thus fully, described my invention what I claim is 1. In a furnace, the combination with grate-bars, of a bearer consisting of independent sides adapted to support the ends of said bars, detachable 'bearingmembers extending across between said sides and bolts extending across the bearer and through said bearersides to draw the sides toward each other and clamp the bearing members between them, and a clinker bar supported by the bearing members.

2. In a furnace, the combination with grate-bars; of a bearer consisting of sides adapted to support the ends of said bars, and provided .ith vertical grooves closed at their lower endsftransverse bearing membersiletachably engaging at their ends said' gron es, bolts extending across the bearer and through its sides, to secure the. sides together and the bearing-members in their grooves, and a clinker bar supported by said bearing-members.

3.111 a furnace, the eombinatimi with grate-bars, of a bearer't'or supporting one end of said bars consisting of parallel sides having vertical grooves closed at their lower ends, bearing-members extending across between said sides with their ends engaging said grooves, bolts extending across the bearer and through its sides adjacent to each bearing-member to draw the sides together and clampthe IBGHllUCLS between them. lugs on each bearing-member projecting beneath said bolts, and a clinker bar supported by said bearing member".

4. In a furnace, the combination with a series of gratobars and a bearer supporting the ends of suidbars. of a rotatable clinker bar con, 'ng of a shaftt'ormed square in cross section. nu-inbers having teeth sleeved upon said shaft. bearing-members on said bearer ior said clinker bar each formed with a bearing of grmiter diameter than the diumotir of the clinlcer bar shaft, and open at its upper side to permit the lifting opt of said shaft. :1 bearing thimble within the hearing ol one of said bearing-members haviug a. square opening to lit the. shaft and provided with u llange at one end to engage the end of the bearing, and means on the shalt near one. end thereof to engage the .himhle oi the adjacent; beari and hold the shal'l l'rom longitudinal movement and (he ihimble within its hearing.

I]. in a furnace. the combination with grate-bars. of a bearer having'sides adapted to support one end of said bars, bearing- Q members extending across between sald sides, a clinker bar supported by said bearing members extending longitudinally between the bearer sides with a wider space between it and. one of said sides than between it and the other side, and a filler adapted to engage the bearing-members at its ends and be detachably supported thereby within the widest space.

(5. In a furnace, the. combination with inclined gratebars, of a bearer having sides adapted to be engaged by and support the lower ends of said bars. a series of bearing members between said bearer sides, a clinker tar rotatably mounted on said boa ring members and extending longitudinally of the biarer closer to one side of the bearer than to the other,- filler plates having spacing ribs to engage one of the bearer sides. and lugs on the end of said tiller plates to engage the beariug members and detachably supportsaid plates within the wider of the two spaces between the clinker bar and the bearer sides.

7. in a furnace. the combination with inclined grate-bars and a bearer having sides adapted to be engaged by and support the lower ends of said bars, of a bearing between said bearer sides near its forward end, a hearth plate extending inwardly from the furnace front with its inner and lower edge above said bearii'ig, and a cap plate detachably supported by the bearing and tilting the space between said bearing and said edge oflhe hearth plate.

8. in a furnace. the combination with inclined grate-liars and a bearer having sides adapted to be engaged by and support the lower ends oi said bars, of a bearing in said bearer between its sides. near its forward end, a clinker bar in said bearing, a hearth plate exteiuling inwardly from. the furnace frontwith its inner and lower edge above said bearing, a detachable cap plate seated upon the bearing, downwardly extending lugs on the cap "plate engaging the bearing and a flange on the cap plate engaging the hearth plate.

9. in a. 'l'urnzu-o. the combination with inclined grate-burs, of a: bearer having sides adapted to be engaged by and to support the lower ends ol. said grate-bars, detach able bearing members between the sides of said bearer having openings near-theirlower sidesjvilhin the bearer. and a steam pipe extending through said openings in said boaring members and provided with jet open ings in its upper side.

10. in a furnace. the combination with inclined grate-bars and a bearer ilor supporting the lower ends ol said bars. of a (linker bar supported by said bearer and consisting of a shaft tornicd square in cross section throughout its length. a series of crushing sections on said sha lt having square lOO ' amer axial openings to receive the shaft and provided with teeth, a sleeve on the forward end of the shaft having a square axial opening to receive the shaft, a detachable plate adapted to be secured to a furnace front and forming a bearing for said sleeve through which'bearing the sleeve projects, means for engaging the projecting end of the sleeve to turn the clinker bar, and means for preventing the shaft from moving longitudinally through said sections and sleeve.

11. In afurnace having a front provided with an opening and a door openil'ig, the combination with inclined grate-bars, of a bearer having sides adapted to be engaged by and to sup'port the lower ends of said bars, a series of'bearing-meinbers exmnding across between said sides of the bearer, a clinker bar supported by said hearing-members and extending outward from the furnace front, a detachable plate adapted to be secured to the furnace front to close the opening therein and to form a bearing for the projecting end of the clinker bar, a bearing-member for the rear end of the clinker bar having a bearin of greater diameter than the diaineter oi the bar and provided With an opening in its upper side through which the bar may he nnd, a

thimble upon the bar engaging saidbearing,

a heart-h plate extending inward and down ward from the door in the furnace front to a point over and adjacent to the forward bearing-member, and a cap plate upon said forward bearing-member to fill the space between it and the lower edge of the hearth plate and detachably interlocked with said bearing-member and hearth plate.

12. In a furnace, the combination with inclined grate-bars and a bearer for supporting the lower ends of said bars, of a clinker-barsupported by ,said bearer and consisting of a shaft formed'square in crosssection throughout its length and a" series of sections on said shaft having square axial openings to receive the shaft and provided with teeth, a sleeve on the forward end ofthe shaft having a square axial opening to receive the shaft, a detachable plate adapt to be secured to the, furnace-front and forming a bearing for the sleeve, said sleeve pro 

